989577

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{643}}^1$

素因数の和:674

約数の個数: 20

約数和(自身を含む): 1558480

約数和(自身を除く): 568903

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 643, 1539, 1929, 5787, 12217, 17361, 36651, 52083, 109953, 329859, 989577]

約数ペア:

[(1, 989577), (3, 329859), (9, 109953), (19, 52083), (27, 36651), (57, 17361), (81, 12217), (171, 5787), (513, 1929), (643, 1539)]